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The novel octadecanudear Cu-RE cluster haw been isolated from the reaction system of aqueous Cu2+-RE3+-pyb (RE=Sm, Eu; pyb=pyridine betaine) and characterized by single-crystal structural analysis. The results show that the clusters comprise a [Cu12RE6(μ3-OH)24(μ12-ClO4)]17+ octahedral core, which encapsulates a ClO4- ion and has 18 water molecules and 12 bridging pyb carboxylato ligands as external ligands.
The novel octadecanudear Cu-RE cluster haw was isolated from the reaction system of aqueous Cu2 + -RE3 + -pyb (RE = Sm, Eu; pyb = pyridine betaine) and characterized by single-crystal structural analysis. The results show that the clusters comprise a [Cu12RE6 (μ3-OH) 24 (μ12-ClO4)] 17+ octahedral core, which encapsulates a ClO4- ion and has 18 water molecules and 12 bridging pyb carboxylato ligands as external ligands.